strict & fixing Docs

[Borda]

Description

Add strict doc build and fix warning issues

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[codecov]

Codecov Report

Merging #24 into master will decrease coverage by 0%.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master    #24   +/-   ##
=====================================
- Coverage      97%    97%   -0%     
=====================================
  Files          26     26           
  Lines        4535   4535           
=====================================
- Hits         4384   4383    -1     
- Misses        151    152    +1